Apparatus for viewing panoramic pictures.



No. 888,236. PATENTED MAY 19, 1908.

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- Drafismam No. 888,236. PATENTED MAY 19, 1908.

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APPLICATION FILED JULY 31. 1906.

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UNITED STATES PATENT OFFICE.

ALBERT HATTU, OF PARIS, FRANCE, ASSIGNOR. TO SOCIETE ANONYME PERIPHOTE ET PHOTORAMA, OF PARIS, FRANCE.

APPARATUS FOR VIEWING PANORAMIC PICTURES.

Specification 01. Letters Patent.

Patented May 19, 1908.

Application filed. July 21, 1906. Serial No. 327,200.

zen of France, residing at Paris, in France,

have invented new and useful Improvements in Apparatus for Viewing Panoramic Pictures, of which the following is a specification.

This invention relates to apparatus adapted for use in viewing panoramic pictures of small dimensions obtained either by photography or otherwise. When said pictures developed upon a plane surface are examined or viewed the panoramic illusion is not obtained, and when they are circularly disposed it would be necessary, for obtaining this illusion, that the point of vision of the spectator be located in the center of the panorama which in the case in question is of too small a diameter, to render this possible.

The apparatus dia rammatically represented in the annexed drawing permits of the spectator obtaining the desired illusion with the eye at a point exteriorly of the panorama.

Figure 1 is a diagrammatic vertical section of the apparatus. Fig. 2 is a front view thereof. Fig. 3 is a diagram showing the same device used for viewing a panorama having a non-continuous or unclosed surface. Fig. 4 is a part side elevation and a part sectional view of a device in which the invention is embodied. Fig. 5 is a rear view thereof.

A total reflection rism a (Figs. 1 and 2) is placed as indicated in the drawing within the panorama c, d, e with its longitudinal edges parallel to the diameter of the circumference of said panorama and the center of its hypotenuse lying on the axial line ofthe panorama or substantially so. The portion 0 d of the picture is reflected by the prism and a vertical image symmetrical with the actual picture is formed. A line g, h for example on the actual picture is seen at 'i, 7' (Fig. 1) by the observer placing his eye in front of the prism a at a point 7c exteriorly of the anorama. There is interposed between the eye of the observer and the prism a a biconvex lens I) the purpose of which is simply to magnify the virtual image seen by the eye from the point 7:.

The more the 10 'tudinal edges of the prism a are extende the larger will be the portion of the reflected picture All the different parts of the circular panorama may be viewed by rotating same about its horizontal axis, as shown in Figs. 4 and 5. In these figures the picture e is held in the piece p which can turn by sliding in a groove etween the pieces and 8, connected together by screws. This piece 5 is fixed to a handle r,by which the observer supports the apparatus.

The lens I) is placed in the piece f supported by a socket connected to piece 8 by arms 11.. This piece f is rigidly connected with the su ports t, u, 1) which hold the prism a b t e corners (see Fig. 5). The observer ho ding the handle 1" by one hand can by using the other on the pins 0 make the ring p turn and conse uently the picture 0. A panorama may a so be used having a non-continuous or unclosed surface. It will then be arranged as shown in Fi 3 to permit being rolled or unrolled on rol ers l and m and the circular or curved portion of the surface comprised between sald rollers may be viewed by means of a prism a and lens 1) arranged in a similar manner as for viewing the closed or continuous circular panorama.

What I claim as my invention and desire to secure by Letters Patent of the United States is 1. The combination with a curved panorama of a total reflection prism so positioned with respect thereto as to roduce a reflected virtual image at right ang es to the picture of said anorama.

2. he combination with a continuous ro-. tatable panorama of a total reflection prism so positioned with res ect thereto as to produce a reflected virtua image at right angles to the icture of said panorama.

3. T e combination with a curved rama of a total reflection prism so positioned with respect thereto as to roduce a reflected virtual image at ri ht angles to the picture of said panorama an a magnifying lens located between said rism and the point of vision.

4. The com ination with a continuous rotatable panorama of a total reflection prism so positioned with respect thereto as to produce a reflected virtual image at right angles to the picture of said panorama and a magnifyi n ens located between said prism an the po int of vision.

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placed within same adapted to produce a reected virtual image at right angles to the picture of said panorama from a point of vision exterior to said panorama.

6. The combination with a continuous rotatable panorama of a total reflection prism placed within same adapted to produce a reected virtual image at right angles to the picture of said panorama from a point of vision exterior to said panorama and a magnilying lens located between said prism and the point of vision.

7. The combination with a circular rotatable panorama of a total reflection prism located within same having its longitudinal edges parallel to the diameter of sald panorama and the center of its hypotenuse substantially coincident with the axisthereof, said prism being adapted to produce a reflected virtual image at right angles to the of vision exterior to said panorama and a ma nifying lens located between said prism an the point of vision. v

In witness whereof I have signed this specification in the presence of two witnesses.

ALBERT HATTU. Witnesses:

ANDRE MreoUT, Jr., J ULES VERNAY. 

